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authorVijay Kumar <vijay.ac.kumar@oracle.com>2017-02-01 11:34:38 -0800
committerDavid S. Miller <davem@davemloft.net>2017-02-23 08:27:24 -0800
commit7dd4fcf5b70694dc961eb6b954673e4fc9730dbd (patch)
tree4209465c2da178199e233f2f4600a36458b57047 /arch/sparc/kernel
parentcffb3e76818fee4763a2ce5f2b1eca2d7885e2cf (diff)
sparc64: Migrate hvcons irq to panicked cpu
On panic, all other CPUs are stopped except the one which had hit panic. To keep console alive, we need to migrate hvcons irq to panicked CPU. Signed-off-by: Vijay Kumar <vijay.ac.kumar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
-rw-r--r--arch/sparc/kernel/smp_64.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 712bf1b7f630..90a02cb64e20 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1452,8 +1452,12 @@ void smp_send_stop(void)
int cpu;
if (tlb_type == hypervisor) {
+ int this_cpu = smp_processor_id();
+#ifdef CONFIG_SERIAL_SUNHV
+ sunhv_migrate_hvcons_irq(this_cpu);
+#endif
for_each_online_cpu(cpu) {
- if (cpu == smp_processor_id())
+ if (cpu == this_cpu)
continue;
set_cpu_online(cpu, false);